In mice the allele for colored fur (C) is dominant to the allele for albinism (c). The allele for normal behavior (W) is dominant to that for waltzing movement (w). Give the probable genotypes of the parents if they produced the offspring
listed after the following crosses:
(a) colored normal ´ white waltzer produced 10 colored normal, 8 colored waltzers, 2 white
waltzers, 11 white normal
(b) colored normal ´ white normal produced 35 colored normal, 13 colored waltzers
(c) colored normal ´ colored normal produced 37 colored normal, 14 colored waltzers, 9 white
normal, and 5 white waltzers What will be an ideal response?
ANSWER: (a) Cc Ww x cc ww
(b) CC Ww x cc Ww
(c) Cc Ww x Cc Ww
You might also like to view...
Which of the two gases, oxygen or carbon dioxide, is present in the oceans in much greater proportions than in air? Why might this be the case?
What will be an ideal response?
Which of the following statements about tunicates is false?
a. Tunicates are in subphylum Cephalochordata. b. Tunicates are in phylum Chordata. c. Tunicates are freshwater organisms. d. Tunicates develop as deuterostomes. e. Tunicates are a living chordate group
Which disorder is characterized by a lack of the protein dystrophin?
A) hemophilia B) color-blindness C) muscular dystrophy D) Down syndrome E) cystic fibrosis
A flexible, spiral-shaped bacterium is called a
A) spirochete. B) vibrio. C) coccobacillus. D) spirillum. E) sarcina.